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16F873A 的 MSPI 程式
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新會員
 
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您好,小弟最近寫了一個SPI的程式,可是我一直量不到SPI相關PIN OUT的 波形(SCK/SDO), 下面附上我的SPI code 請板大幫忙看一下,謝謝
banksel TRISC movlw 0x10 ;let PORT C bit 4(SI as input others as output) movwf TRISC banksel SSPSTAT bcf SSPSTAT,7 bcf SSPSTAT,6 ;data transfer when falling edge banksel SSPCON clrf SSPBUF ;clear SSP BUFFER movlw 0x31 ;no collision, no overflow, Enable SPI, High Level when Idel, Clock=OSC/32 movwf SSPCON bsf SSPCON,5 banksel PIE1 clrf PIE1 ;disable all peripheral int banksel INTCON clrf INTCON ;disable all interrupts
發表於: 2005/12/22 12:23
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